wp-includes/theme-previews.php:69Set a JavaScript constant for theme activation.
function wp_block_theme_activate_nonce() { $nonce_handle = 'switch-theme_' . wp_get_theme_preview_path(); ?> <script type="text/javascript"> window.WP_BLOCK_THEME_ACTIVATE_NONCE = <?php echo wp_json_encode( wp_create_nonce( $nonce_handle ) ); ?>; </script> <?php}Introduced in 6.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/theme-previews.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.